13 If an environmental agency is charging polluters a tax to reduce their level of pollution down to the optimal level, what level of tax will be required to achieve that outcome? out of O a. A tax per unit of pollution equal to the average cost of pollution at zero abatement question O b. A tax per unit of pollution equal to the present value of all future costs from pollution O c. A tax per unit of pollution of abatement equal to the marginal cost of pollution at zero pollution O'd. A tax per unit of pollution equal to the marginal benefit at the social optimum Jen 14 A well-implemented environmental policy should O a. provide opportunities for government to keep track of the environment impact of ed out of developers ag Question O b, have regulations that allow businesses to adopt practices O c allow beneficial economic development to proceed with no net loss to the environment Old. convince the businesses that they are benefits available to them that they didn't know about